Two-speed logging-engine



H. L. TURNEY.

TWO-SPEED LOGGING ENGINE.

APPLICATION man Nov.11, ma.

.1,349,7' 42. Patented Aug; 17, 1920.

2 SHEETS-SHEET l.

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H. L. TURNEY.

TWO-SPEED LOGGING ENGINE.

APPLICATION FILED N.ov.11, 1918.

l1,349, 742 Patented Aug. 17 1920.

2 SHEETS-SHEET 2.

PATENT OFFIQE.

miauw L. TURNEY, `or PORTLAND, OREGON.

\ Y TWO-eraan Lomme-ENGINE.

speianon of Letters Patent." Patented Aug- 17, 1920,

,iAppilicationledl ovember 11,1918.` Serial No. 262,071.

To all whom it may concern: s

Be it known that I, HARRY L. TURNEY, a citizen of the United States, residing inthe city of Iortland, `county of Multnomah, and State of Oregon, have invented certain new and useful Improvements in `Two-Speed Logging-Engines, of which the following is a specification. f

My invention relates to logging engines of the character shown and described in Letters Iatent No. 1,038,029, issued to me Sept. 10, 1912, and in Letters Patent No. 1,259,173, issued to me March 12, 1918. u

The principal object of the present invention is to provide a construction and arrangement in which` the main. drum and drum-driving gears are mounted on a drum shaft, located preferably between a main driving shaft, driven preferably directly from the engine, and an indirect drivingr shaft, driven from `one of said main drumdriving gears, and having gear connections for driving the other of said drum-driving gears. In other words, Ihave provided in connection with a main driving shaft and a main drum shaft, an auxiliary driving shaft with gear connections whereby one of said drum-driving gears is driven directly from the main driving shaft, and the other drumdriving gear is driven indirectly from said main driving shaft, through-said first drumdriving gear, and said auxiliary driving shaft. i

\ I have illustrated my improved logging engine on the accompanying two sheets of drawings, in which,

Figure l is a top plan view thereof, with parts brokenv away and shown in section; and Fig. 2 is a side elevation thereof. i Referring now more in detail to the drawings, 1, 1, designate suitable supporting frame members, on which may be mounted a boiler' 2, or other power furnishing mechanism, and engines 3, 3. A main driving shaft 4, is mounted in suitable bearings 5, 5, on said frame, and is provided at its opposite ends with crank members (i, 0, adapted to be connected with the engines 3, 3. A gear 7 is mounted on said main drive shaft 4, as shown. Mounted forwardly of said main drive shaft 4, is a `main drum shaft 8, on

which is mounted a main drum 9. Alsol mounted on said shaft 8, are drum-driving gears 10 and 11, provided with clutch-con necting means for connecting them with said main drum 9, in a well known manner, said clutch means being designated, respectively,

`main drum shaft 8, is an indirect drive shaft 14, provided with a gear` 15, in mesh with drum-driving gear 10. Said shaft 14 is also provided with a gear 16, in mesh with drumdriving gear 11. The gear 10 is less in diameter' than the gear 11, and the gear 16 is less in diameter than the gear 1f. The purpose of this is evident.

When drumdriving gear 10 is clutch locked to the drum 9, said drum 9 is driven di rectlyfrom the main drive shaft 4, through gears 7 and. 10. Vhen `druindriving gear 11 is clutch-locked to the drum 9, and gear 10 is disconnected therefrom, said drum is driven from the direct drive shaft 4, indirectly through gears 7, 10, 15, indirect drive shaft 14, and gears 1G and. 11. Thus I am able by this arrangement to drive the main drum 9 at different speeds at will, in the same direction, and with different power. Change from one drive `to the other can be made easily conditions require. Where a heavy load is to be lifted or started from a location where greater power and less speed is required, the indirect, or power connection, through gears 7, 10, 15, shaft14 and gears 16 and 11 can be used. After the load is started and is moving with less resistance, the direct, or speed, connection, through gears 7 and 10 an be thrown into action, thus saving a great deal of valmible time in the course of a day where large logs and the like are being handled for great distances.

As shown in my Letters Patent No. 1,- 259,173, I have also provided in this engine, two other smaller drums, 17 and 18, mounted on` a common shaft L19, as clearly shown. Also mounted on this shaft, 19, between said drums, is a drum-driving gear 20, which meshes with the gear 7, on the main driving shaft 4. Cone clutch mechanisms 21 and 22, are also provided at opposite sides of the gear 20, for driving the drums 17' and 18, at will.

Any suitable drum and gear shifting means can be used for cll'ltch-locking the `drums and gears, and I have, therefore,

shown no particularmechanism for this puran indirect-drivel shaft, and gears on said thermore, suitable mechanism for this pur-V pose is described inydetail in my VVpatents hereinbefore referred to.

Drum-driving gears 10 and 11 and drum 9V are normally held in disconnected relatien-g ship .by means ofisprings23 and 24, similar tothose shown in my'patents referred to. .Springs 25 and 26 normallyhold drums 17 and 18 disconnected from driving gear20.

I Vam aware that slight changes can be :made in this arrangement without departing from the spirit yofmy invention, and I do not,

therefore, limit the invention to the specific embodiment thereof here shown for illus- 'trative purposes,except asV I may be limited byv thevherreto appended claims.

f I claim:

-1. In a two speed logging engine, in combination, a support, a direct drive shaft mounted thereim-a driving gear thereon, a. drum shaft with drumthereon, drum-driving gears on said'fdrum shaft, means for -clutch-locking eitherI of said drum-driving vgears and said drum together at will, one of said drum-driving gears being in mesh with thegdriving gear on said direct drive shaft.

indirect drive shaft in mesh, respectively,

with the'drumldriving gears on said drum shaft.

2.` -In a two speed logging engine, in combination, a direct drive shaft with driving gear thereon, .a drum shaft with drum thereon, drumedriving gears on said drum shaft Y atropposite ends of said drum, means for vgear mounted thereon, a drum shaft with Ydrum. thereon mounted on said frame in Afront of said direct drive shaft drum-driving gears on said drum shaft at opposite ends jo'flsaid drummeans for clutch-locking either of said drum-driving gears to said 'drum at will, one of said drum-driving gears beingY in meshwith the driving gear on said direct' drive shaft, an indirect drive shaft mounted on said .frame in front of said drum shaft, andr driving gears on said indirect drive shaft in mesh, respectively. with said drum-driving gears, substantially as described.

4. In a two speed logging engine, in combination, a frame, a direct drive shaft with driving gear thereon, a drum shaft with drum thereon, drum-driving gears on said drum shaft, means for clutch-locking said drum-driving gears to said drum for direct and indirect drive of said dium in the same direction, one of said drinn-driving gears being invniesh with the driving gear on said direct drive shaft, an indirect drive shaft mounted on said frame, two indirect driving gears on said indirect drive shaft and meshing, respectively, with said drum-driving gears, said train of gears for the indirect drive being of varying diameters, whereby to'give more power and less speed to one of said vdrum-driving gears when it is driven through the other of said drum-driving gears, substantially as described.

5. In a two speed logging enginer` in combination, a frame, a direct drive sha il with driving gear mounted thereon, a drum shaft with' drum thereon mounted on said frame infront of said direct drive shaft, drumdriviiig gears on said drum shaft at opposite ends of said diuin, clutch means for driving said drum from either of said diiiii'i liivi1ig gears at will, an indirect drive sha ft in front of said drum shaft, indirect driving` gears thereon and in mesh, respectively, with said drum-driving gears, a second drum shaft provided with a gear in mesh with said driving gear on said direct drive shaft, a second drum on said second drum sha ft, and clutch means for interlocking said second drum and the gear on its shaft, substantially as described.

6. In an engine, iii combination with the power furnishing mechanism, a direct drive shaft provided with a direct drive gear, a drum shaft provided with a drum` drumdriving gears mounted on said drum shaft at opposite ends of said drum, clutch means for locking said drum and drum-driving gears together at will for driving said drum in the same direction at different speeds, a n indirect drive shaft, gears thereon and in mesh, respectively, with said drum-driving, gears, said druin-driviiig gears being of differen Hdiameters, and the gears on said indirect drive shaft being of diiferent diameters, substantially as shown and described. Signed at Portland, .Multnomah county, Oregon, this 81st day of October, 1918.

HARRY L. TURNEY. In presence ofi F, G. LAMY,

R. ALLisoN Hess. 

